1. According to a fast food manager, the average number of customers between 8am to 11am is 10, with a variance of two. His friend from other outlet does not believe that the variance is two. He counts the number of customers in 15 other outlets and obtained the following data: Table 1 Number of Outlet Customers 1 11 2 10 3 9 4 10 5 10 6 11 7 11 8 10 9 12 10 9 11 7 12 9 13 11 14 10 15 11 Based on the data, help the manager to decide whether the variance is different from two using a = 0.05.
1. According to a fast food manager, the average number of customers between 8am to 11am is 10, with a variance of two. His friend from other outlet does not believe that the variance is two. He counts the number of customers in 15 other outlets and obtained the following data: Table 1 Number of Outlet Customers 1 11 2 10 3 9 4 10 5 10 6 11 7 11 8 10 9 12 10 9 11 7 12 9 13 11 14 10 15 11 Based on the data, help the manager to decide whether the variance is different from two using a = 0.05.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.5: Comparing Sets Of Data
Problem 14PPS
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Transcribed Image Text:1. According to a fast food manager, the average number of customers between
8am to 11am is 10, with a variance of two. His friend from other outlet does not
believe that the variance is two. He counts the number of customers in 15 other
outlets and obtained the following data:
Table 1
Number of
Outlet
Customers
1
11
2
10
3
9
4
10
10
6
11
7
11
10
12
10
11
7
12
13
11
14
10
15
11
Based on the data, help the manager to decide whether the variance is different
from two using a = 0.05.
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